/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package pkg_customerManagement;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 *
 * @author mattcarr
 */
public class Login extends HttpServlet {

    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");

        HttpSession session = request.getSession();

        String email = request.getParameter("logemail");
        String pass = request.getParameter("pass");
        String success = "index.jsp?l=s";
        String error = "index.jsp?l=e";
        
        if (email.length() < 2) {
            response.sendRedirect(response.encodeRedirectURL(error));
            return;
        }

        if (pass.length() < 2) {
            response.sendRedirect(response.encodeRedirectURL(error));
            return;
        }

        CustomerDatabaseFunctions cDF = new CustomerDatabaseFunctions();
        int customer_id = cDF.authenticateCustomer(email, pass);
        
        if (customer_id >= 0) {
            String user  = cDF.getCustomername(customer_id);
            
            session.setAttribute("login", Integer.toString(customer_id) );
            session.setAttribute("user", user );
            response.sendRedirect(response.encodeRedirectURL(success));
            return;
        } else {
            response.sendRedirect(response.encodeRedirectURL(error));
            return;
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
